Method of producing colored concrete bodies such as colored conc

Details Method of producing colored concrete bodies such as colored conc Method of producing colored concrete bodies such as colored conc

1998-03-06

2000-07-18

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264148, 264151, 264163, B28B 300, B28B 500, B29C 4704

Patent

active

060903295

ABSTRACT:
A method for producing colored concrete bodies, particularly colored concrete roof tiles, whereby pigment is added to the unprocessed concrete mix. In order to provide the production of permanently colored concrete bodies with reasonably priced pigments which are stable in outdoor exposure and are resistant to light, particularly UV, alkalis and heat. A cement compatible aqueous polymer dispersion in which organic pigment is dispersed is added to the unprocessed concrete mix. Suitable cement compatible polymer dispersions are aqueous polymer dispersions based on styrene and/or pure acrylate. Phthalocyanine and quinacridone pigments are particularly suitable as organic pigments.

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"Suggestions for Improving Coloured Concrete Products", Concrete Precasting Plant and Technology, Adolf M. Veit, Walluf, Nov. 1994, pp. 92-100.

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